CN86103146A - A kind of method of producing metal with electrolytic process - Google Patents
A kind of method of producing metal with electrolytic process Download PDFInfo
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- CN86103146A CN86103146A CN198686103146A CN86103146A CN86103146A CN 86103146 A CN86103146 A CN 86103146A CN 198686103146 A CN198686103146 A CN 198686103146A CN 86103146 A CN86103146 A CN 86103146A CN 86103146 A CN86103146 A CN 86103146A
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- negative electrode
- metal
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C5/00—Electrolytic production, recovery or refining of metal powders or porous metal masses
- C25C5/02—Electrolytic production, recovery or refining of metal powders or porous metal masses from solutions
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/007—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells of cells comprising at least a movable electrode
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/06—Operating or servicing
- C25C7/08—Separating of deposited metals from the cathode
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- Electrolytic Production Of Metals (AREA)
Abstract
Adopt the electrolyzer have fresh electrolyte input unit and electrolytic solution discharger with the electrolytic process metal refining in the electrolytic solution, at least one positive plate, at least one negative electrode is respectively applied for the current bus bar device of anode and negative electrode; This negative electrode rotates with axle 7, and this negative electrode is formed by scribbling the tabular metal substrate of electrically insulating material, and it has the conductive region of many mutual separations, and this zone keeps conduction to contact with electric current carrier.This conduction region forms cathodic activity surface, and metal refining in electrolytic process is thereon peeled off metal then from the cathode portion on electrolysis liquid surface continuously or off and on from this zone and to be taken out from system.
Description
The invention relates to the method for from aqueous electrolyte liquid, producing metal with electrolytic process, use the negative electrode of at least one anode and at least one rotation.
The use of the board-like negative electrode of rotation has been described in U.S. Patent number 1073863.Here, desired metal is that form with the sheet coating is deposited on the negative electrode.
At present, mainly be to use fixing board-like negative electrode, also not a lot of actual uses of rotating electrode.
Fixing tabular advantages of cathodes be simple to operate and upkeep cost lower.Yet, the hand labour in their rely heavily on electrolyzers.
The negative electrode of initial rotation produces flaky cathode deposit as the fixed plate-like cathodes.Unique difference is the geometrical shape of negative electrode.The negative electrode of rotation is a garden shape, and the fixed plate-like cathodes is a rectangle.One of reason that the plate-like cathodes of rotation is not widely adopted may be to peel off the difficulty that the precipitation metal runs on the cathode material.
The development of chemical technology has in the past few years caused all unit operation automatizations in a whole set of technology.With the electrolytic situation of fixed plate-like cathodes, obtained partial automation by using a computer.Computer monitor the residence time of negative electrode in ionogen, and when having deposited required amount of metal, computer can allow overhead crane lift negative electrode and transfer them to peels off workshop section.Then, overhead crane is taken back the empty place that a new master slice negative electrode is put into electrolyzer.
The actually operating of automatic electrowinning process like this is very complicated, thereby many producers are still keeping the old program with the hand labor operation.
In order to make the whole automatizations of electrowinning process, the notion of electrolytic process must become a new method, has both kept and the same metal quality that obtains with out-of-date methods, and same cost can be realized automatization again.
The invention relates to a kind of method, this method can be operated and automatization basically continuously.This is by using at least one tabular rotating cathode to obtain, and this negative electrode is coated with the coating with electrical isolation, passes the electric conductor that this coating is loaded onto some amount.Each conductor is all as the zone of metal deposit.Perhaps, these zones can be the apertures that makes on the insulating coating.
When above-mentioned zone is the form in hole in insulating coating, make above-mentioned hole be arranged in helical, and distance between borehole is 0 to 5mm to have actual Fu Yuexing.When this distance is 0mm, just on negative electrode, formed continuous spiral form groove.So, sedimentary metal can take off as a lead.If want to prepare the negative electrode with such helical flute, above-mentioned groove can carve with very sharp instrument, and this sharp instrument can be cut insulating coating and following electric conductor core is exposed in the electrolytic solution.
As mentioned above, adopt the device of the electrolytic process of rotating cathode from US-SP1073868, to learn.According to described patent, metal deposits on the negative electrode as continuous coating.And when obtaining preset thickness, above-mentioned coating is peeled.This is a costliness and complicated technology.
Also have, according to US-PS numbers 3860509 electrolyzer is installed on indoorly, and settling the flat rotating cathode of a cover from the anode short distance of correspondence.The negative electrode that illustrates is made up of the cathode element of the some minor diameters that separate each other on the insulating parent.Each element ends up with apiculus, and metal can be deposited on the form of dendritic crystal on these tips, then peels with the mechanism on the anode surface that is contained in the opposite.Stripper can move radially, and the dendrite that is deposited on like this on the negative electrode can be stripped from down from above-mentioned negative electrode, and sinks to bottom land, so as when to replace waste liquid with fresh electrolytic solution and waste electrolyte some go out.Then, dendritic crystal body and function appropriate means is separated from electrolytic solution.
Be for US-PS number that relates to fixing plate-like cathodes in 3082641 the patent, negative electrode is made up of the electric conductor that some are insulated the material separation, this patent is to being that the electrolyzer of mentioning in 3860509 is discussed below at US-PS number: " this key concept has been to describe in 3860509 at U.S. Patent number; it once was used to the metal of continuous production finely powdered on the upright zone of trickle arc, but wherein disclosed technology is not suitable for the much bigger intermittent type transmodulator of sedimental amount." just as mentioned here, the electrolyzer in No. 3860509, the United States Patent (USP) is not suitable for industrial application.In addition, the electrolyzer that illustrates is too complicated and impracticable.
In US-PS4025400 number patent, disclose a continuous processing that adopts fixed negative pole, sedimentary metal has been removed with the device that " windscreen wiper " is the same.The metal that is removed sinks on the travelling belt by electrolytic solution, and travelling belt transfers out electrolyzer with metal.Such method, the last-mentioned United States Patent (USP) of di sopra is said, owing to adopted mechanical stripper, and is again to use in the electrolyzer with the anode that interlocking in a large number and negative electrode, so be more complicated.Another complicated factors is the travelling belt that metal is sent out from electrolyzer.
According to present method, adopt a rotating cathode at least, preferably the plate in garden.Cathode material can be to be describe in 4193434 the sort of for US-PS number, or metallic substance, nails on non-conducting material thereon, makes a large amount of nail/rod nail formation activated cathode surfaces that diameter reaches 25mm that has.Such negative electrode can be according to (on January 11st, 1985) disclosed method preparation in the Norwegian patent applications numbers 850133.
Need not number be 850133 the method for preparing negative electrode according to above-mentioned Norwegian patent applications, also can adopt such negative electrode, promptly on insulating material, hole, or in insulating material, make spiral groove, metal refining in the hole or in the groove.The not too attracting form of another kind is that groove radially extends to outer rim.In general, the negative electrode of employing will be made up of by the separated conductive region of electrically insulating material some.
With reference to following figure the present invention is described below, wherein
Fig. 1 shows the cathode wheel that adopts according to present method.
Fig. 2 shows another cathode wheel that adopts according to present method.
Fig. 3 is the detailed view of the groove for preparing in the cathode wheel of Fig. 1.
Fig. 4 is the detailed view in the insulating coating of Fig. 1 hole of boring.
Fig. 5 shows the part of electrolyzer, has spiral slot on the wherein used cathode wheel.
Fig. 6 shows the layout similar to Fig. 5, and here, cathode wheel has many holes of moving towards brill along the spiral road.
Fig. 7 shows the electrolyzer of being made up of some anodes and negative electrode.Only drawn among the figure and on insulating coating, bored perhaps porous negative electrode, and removed the attached clearing device (10) that metal refining is used, it with Fig. 5 in different.
The explanation of figure
Fig. 1
(1) is cathode wheel with insulating coating.(2) be the spiral slot zone of a conduction.(only showing a groove) (3) are the holes of wheel axle.This takes turns the generation plain conductor.
Fig. 2
(1) is cathode wheel with insulating coating.(2) be the boring of moving towards along spiral road (4).(3) be the hole that is used for axle in the wheel.(5) be insulated part between each hole.This takes turns the generation metallic particles.
Fig. 3
(1) is the groove of preparation in insulating coating (3).The end of groove is naked metal (2).Be stamped the underlying metal negative electrode of insulating coating (5) in A-A section (4) expression.(6) be the section of the metal wire for preparing in the groove.(7) show the metal with " weathering " structure of initial deposition.(8) show the zone band at " crisp " metal place, and (9) have pointed out the zone band that solid metal is positioned at.
Fig. 4
(1) spiral that shows the hole of boring in insulating coating (2) moves towards passage.(2) show the end of conducting metal in hole and (4) indication window.
In cross section A-A (5) is cathodic metal.And (6) are used non-conductive coating layers.(7) show the metallic particles section, and wherein (8) are at first at the band in " weathering " zone of high current density deposit very.(9) show crisp frangible band, (10) show the sedimentary zone of solid metal band.
Fig. 5
(1) cathode wheel shown in the presentation graphs 1, wherein (2) are spiral grooves.(3) be metal wire eradicator (trimmer, harvester), control by (4).Metal wire strips off the back by (5) coiling, and the coil of wire (6) can be removed.(7) be anode, and (8) are the grooves that electrolytic solution (9) are housed.
Fig. 6
(1) be the cathode wheel shown in Fig. 2, (2) represent the hole of moving towards brill along spiral, as shown in Figure 2.(3) expression granular metal eradicator (trimmer, harvester) is controlled by (4).Granular metal is to be drawn in (6) and to be discharged into (7) by air-bleed system (5).(8) be anode in the electrolyzer (9), contain electrolytic solution (10) in the groove.
Fig. 7
Xuan Zhuan plate-like cathodes (1) is staggered with anode (3) in electrolyzer (4) in this drawing.Negative electrode (1) has many conduction regions (2) of being separated by electrical isolation material material.Such negative electrode is represented one of front disclosed negative electrode material material.Negative plate is contained on the turning axle (7).
Line (5) and (6) are not connected to the (not shown) external power source by electric current respectively for anode and negative electrode.Electrolytic solution is added in the electrolyzer by supply-pipe or conduit (8), and exhausted electrolytic solution is drained from electrolyzer by corresponding pipe or conduit (9).The metal that is deposited on the negative electrode is removed by the stripper (10) of machinery, and the metal of removing (12) is fallen forwarder (11) and transported from system.Only show a stripper of negative electrode one side in this figure, certainly, reality all will be used a stripper in each side of each rotating cathode 1.
When carving spiral slot in cathode, preferably by this way, that is, the width at the end of the conducting metal of groove is the scope between 0.05-0.2mm.If the production granulated metal of holing on the cathode insulation coating, the metal bottom in hole are scope between the 0.1-0.5mm at diameter preferably.
There is the people of skill to know to electrolysis process, can demonstrates different rigidity and hardness with the sedimentary different metal of electrolytic process.Hard and frangible metal preferably is deposited as granular metal, and soft metal preferably adopts and is carved into spiral groove and the method for metal refining line therein on negative electrode.
Present method will further describe with following Example.
Example 1
The purpose of this example is to illustrate can utilize the rotating cathode that the scribbles plastics CuSO in standard
4/ H
2SO
4Make shot copper with electrolytic process in the electrolytic solution, and many apertures are arranged on the plastic coating, the cathodic metal bottom is exposed in the electrolytic solution by above-mentioned hole like this.
Test conditions is as follows:
2 rev/mins of negative electrode rotating speeds
40 ℃ of temperature
The anode red copper
It is 0.5mm that negative electrode has 200 diameters
Kong Bingfu with the stainless steel plate of plastic coating,
The negative electrode diameter is 200mm
During the electric current starting is 0.2 ampere
At the end be 4.5 amperes
Groove is pressed 0.3 volt
In electrolytic solution 45% of the total cathode area of submergence degree of negative electrode
Table 1-result
Time average particle weight average particulate diameter
(hour) (milligram) (millimeter)
17.7 42 2.7
What test showed after 17.5 hours electrolysis a certain size almost is that perfect hemispherical red copper particle can easily be stripped from down.These particles are hard and can easily rinse out trace electrolyte.
Electrolyzer is depressed work at 0.3 volt constant groove, and the variation of current density is consistent with the particulate size that is produced.
Example 2
The diameter that should purpose for example be to show the hole (being referred to as the island later on) in being exposed to electrolytic solution during greater than 0.5mm particle also can form.Varying aperture is from 0.5 to 4.5mm but the situation that the time test of all the other conditions such as example 1 is carried out.
Table 2-result
Time island diameter average particulate diameter average grain weight
(hour) (millimeter) (millimeter) (milligram)
17.5 0.5 2.7 42(examples 1)
50 1.5 5.0 270
33 2.5 5.0 260
80 4.5 8.0 650
Theoretical weight F island diameter
(milligram) (millimeter)
44 0.95 0.5
280 0.85 1.5
280 0.93 2.5
1140 0.57 4.5
Wherein F is-factor, the ratio of the weight of expression deposited particles and the weight of the perfect hemisphere that deposited particles has same diameter.
Test shows that the particle that is produced almost is perfect hemisphere when island diameter during less than 2.5mm.Hemispherical particle is than easier the peeling off of particle of making on the island of diameter greater than 2.5mm.This shows, uses the island of diameter less than 2.5mm, is favourable in actually operating.
Example 3
This example make explanation, use rotating cathode to compare more superior with the fixed flat planar negative electrode.Zinc anode is to be used in the electrolytic solution of zinc chloride, negative electrode is that a rotation aluminium sheet is that to be fixed to the thick plastic board of 2mm on the aluminium core with aluminium rivet topped thereon, in other words, that is according to Norwegian patent applications No.850133 preparation, the head of rivet and as the island, and when electrolysis, zinc is deposited on the above-mentioned island, the diameter on above-mentioned island is 4.5mm, and temperature is 32.5 ℃, and electrolytic solution contains 25 grams per liter Zn
++And PH is adjusted to 2 with HCL, is not added with anti-polymkeric substance.
Table 3-result
The energy that time speed and current efficient is utilized
(hour) (%) kilowatt-hour/every zinc
24 0 75.2 1210
32 1 98.4 600
22 2 95.2 630
23 6 91.3 670
The zinc particle is flat but peels off out from negative electrode easily that electric current almost is constant in 1.0～1.3 amperes when bath voltage is 0.6～0.8 volt.
Test clearlys show that it is favourable using rotating cathode in the method, and rotating cathode can make electrolytic solution fine stirring in groove therefore reduce or eliminated because the spreading area along cathode zinc that bubble hydrogen causes, and invading of the electrolytic solution with regard to zine ion touched.
Example 4
The purpose of this test is to produce lead rather than red copper particle.
With diameter is the cathode wheel that 1.0 meters stainless steel is made a garden shape, and covers with Resins, epoxy.In the one side, on Resins, epoxy, to cut a spiral slot and see metal up to the bottom, the bottom of groove is the wide metal strip of 0.2mm, the length of its band just in time equals the length of whole grooves.Spiral fluted pitch is 5mm, so the length overall of spiral is 140 meters, is 0.25 meter from the outer side (D=0.98mm) of negative electrode up to interior diameter.
Above-mentioned wheel is immersed in the copper electrolyte of standard, through to total cathodic surface area of 40%, at this moment add electric current, in electrolysis under 17 amperes the electric current after 35 hours, there is the wheel subdivision in the 610 copper conductor electrolytic solution from above that restrain to strip down, the diameter of lead is about 1.0mm, and its transverse section almost is perfect half garden shape.
Testing data
Anode aluminium (3% antimony is stable)
Negative electrode stainless steel, both sides all scribble Resins, epoxy
Electrolytic solution copper sulfate/sulfuric acid
(copper of 60 grams per liters, 100 grams per liter H
2SO
4)
79 ℃ of temperature
Bath voltage 1.66V(end)
Conclusion
Initial current density can high be " weathering " (" rotten ") and the black powder occur to the metal of bottom initial deposition in groove that makes lead, along with the growth current density of metal wire is reduced to 1.7 peace/decimetres
2This can produce a blocky glossy plain conductor.Because " weathering " fuse of initial generation, peeling off of above-mentioned lead is very easy.A kind of more perfect method that this electrolysis process has a mind to take according to the present invention.
Use " pickup apparatus " to peel off, a little stainless steel knife is equipped with in the end of pickup apparatus.Above-mentioned pickup apparatus is an open tube that links to each other with Winder, and the metal wire under blade is peeled off hands down along pipe at an easy rate and delivers on the winder, and is wound into coil, and " pickup apparatus " easily followed the lead that forms with spiraling and walked about on negative electrode.
Example 5
The purpose of this test is to make the nickel particle
The cathode wheel of garden shape is done by stainless steel, and its diameter is 1.0 meters and is coated with Resins, epoxy.The one sidetracking have 17500 holes thus the bottom-exposed in hole go out metal core, the diameter of this metal bottom is 0.2mm, above-mentioned hole is to bore in succession every 8mm along helical path, and above-mentioned helical path pitch is 5mm, therefore, the total length of above-mentioned helical path is 140mm, is 0.25 meter from the outside (D=0.98 rice) of negative electrode up to interior diameter
Testing data
The negative electrode stainless steel, both sides scribble Resins, epoxy
Anode is coated with the ruthenium of titanium
Electrolytic solution single nickel salt/muriate
(Ni=60 grams per liter PH=1.3-1.5)
77 ℃ of temperature
Bath voltage 2.12V(is at the end)
Conclusion
At current constant be under 17 amperes the condition through 32 hours electrolysis, the nickel particles of 530 grams strip down from cathode wheel at an easy rate.
Initial current density height must make particulate bottom (the metal initial deposition is in the hole of being bored) be " weathering " and by the powder constituent of black.
Along with the particulate growth, current density is reduced to 2.5A/dm
2This just produces firm and bright metallic particles, because initial " weathering " core that forms, lift-off particles just is easy to.This technology is a kind of more perfect method taked of having a mind to according to the present invention, all is like this for lead and particle.
Peel off by " pickup apparatus " that little stainless steel blade is housed in the end, " pickup apparatus " is the open tube that is connected to air extractor and cyclonic separator, doing loosening particle by blade easily and effectively is drawn onto in above-mentioned " pickup apparatus ", then down to cyclonic separator, peel off the back particle in end and be discharged from cyclonic separator, pickup apparatus is easily being followed by granuloplastic helical path and is being walked about.
This illustrates that adaptability of the present invention is strong, promptly can be taken to few negative electrode that a continuous cutting is arranged on one side, also the groove on the negative electrode can be divided into littler part (hole), thereby does not produce metal wire and produce clipped wire.
Example 6
The purpose of this test is to produce nickel wire, and electrolytic solution and technology are consistent with example 5, but cathode wheel be with example 4 in used consistent.
After finishing electrolysis, the nickel wire that is produced strip down and as example 4 be wound into coil mentioned, this illustrates that the present invention also is flexibly, so also can produce nickel wire line.
Have been found that in pilot plant, 30 of negative electrode total surface area can be immersed in the employed electrolytic solution to 70%.
Claims (4)
1, a kind of at least one anode (3) and at least one shape plate rotating cathode (1) of in the aqueous solution, adopting, extract the method for metal (12) with electrolytic process, it is characterized in that the rotating cathode (1) that adopts is plate-like cathodes (1), many conductive regions that separated by electrically insulating material (2) are all arranged on the surface of each side of this negative electrode, work as the sedimentary province of precipitation metal in this zone.
2, according to the method for claim 1, it is characterized by sedimentary metal (12) continuously or off and on negative electrode (1) part on the electrolyte surface peel off, then be transferred out system.
3, be used to implement the device of the method for claim 1, comprise the access to plant (8) with fresh electrolyte and the electrolyzer (4) of waste electrolyte discharger (9); Also comprise at least one positive plate (3) and at least one negative electrode (1), with the electric current that is respectively applied for anode (3) and negative electrode (1) not line (5) and (6), and wherein said negative electrode (1) rotates by means of axle (7), it is characterized in that, above-mentioned negative electrode (1) is made of the plate-shape metal substrate that is coated with the material of electrical isolation, have many conductive regions of mutual separation thereon, wherein above-mentioned zone (2) contacts with electric conductor (7) conduction, above-mentioned zone forms the active surface of negative electrode in electrolytic process, thereon metal refining (12).
4, the device of claim 3 requirement is characterized in that being used to peel off stripping off and clearing device (10) directed outwards e Foerderanlage (11) of metal refining (12).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO852594A NO158352C (en) | 1985-01-11 | 1985-06-27 | PROCEDURE FOR ELECTROLYTICAL EXTRACTION OF METAL, PRIOR COPPER, ZINC OR NICKEL, AND A DEVICE FOR EXECUTING THE PROCEDURE. |
| NO85.2594 | 1985-06-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86103146A true CN86103146A (en) | 1986-12-24 |
Family
ID=19888364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN198686103146A Pending CN86103146A (en) | 1985-06-27 | 1986-05-06 | A kind of method of producing metal with electrolytic process |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US4773978A (en) |
| EP (1) | EP0227689A1 (en) |
| JP (1) | JPS624892A (en) |
| CN (1) | CN86103146A (en) |
| AU (1) | AU581964B2 (en) |
| CA (1) | CA1306440C (en) |
| FI (1) | FI83338C (en) |
| MX (1) | MX170335B (en) |
| WO (1) | WO1987000210A1 (en) |
| ZA (1) | ZA863327B (en) |
| ZM (1) | ZM4086A1 (en) |
Cited By (2)
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|---|---|---|---|---|
| CN102007230A (en) * | 2008-04-14 | 2011-04-06 | 三菱电机株式会社 | Active oxygen generating device, humidifier, and air purification system with humidifier |
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| DE4428787C2 (en) * | 1994-08-13 | 1997-05-07 | Fraunhofer Ges Forschung | Waste water treatment process and apparatus |
| NL1006340C2 (en) * | 1997-06-17 | 1998-12-21 | Rafael Technologie En Manageme | Method and device for recovering metals. |
| WO1999066107A1 (en) | 1998-06-15 | 1999-12-23 | The Boeing Company | Making particulates of controlled dimensions |
| US7273537B2 (en) * | 2002-09-12 | 2007-09-25 | Teck Cominco Metals, Ltd. | Method of production of metal particles through electrolysis |
| AU2002952181A0 (en) * | 2002-10-21 | 2002-11-07 | Intec Ltd | Electrolysis process and cell for use in same |
| AU2003271431C1 (en) * | 2002-10-21 | 2009-03-19 | Intec Ltd | Electrolysis process and cell for use in same |
| EP1583848B1 (en) * | 2002-12-31 | 2011-07-13 | Intec Ltd | Recovering metals from sulfidic materials |
| JP2006083466A (en) * | 2004-08-17 | 2006-03-30 | Furukawa Electric Co Ltd:The | Apparatus for recovering metal |
| JP5797030B2 (en) | 2010-08-25 | 2015-10-21 | キヤノン株式会社 | Image processing apparatus and method |
| CN102296325B (en) * | 2011-06-15 | 2016-05-04 | 马光甲 | Process for treating waste lead accumulator through continuous solid phase electrolysis of rotating cathode |
| US20130153437A1 (en) * | 2011-12-20 | 2013-06-20 | Freeport-Mcmoran Corporation | Cathode assembly including a barrier, system including the assembly and method for using same |
| RU2534181C2 (en) * | 2013-02-19 | 2014-11-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Российский химико-технологический университет им. Д.И. Менделеева" (РХТУ им. Д.И. Менделеева) | Production of electrolytic metal powders |
| SI3072180T1 (en) * | 2013-11-19 | 2019-05-31 | Aqua Metals Inc. | Devices and methods for smelterless recycling of lead acid batteries |
| PL3294916T3 (en) | 2015-05-13 | 2021-05-17 | Aqua Metals Inc. | Systems and methods for recovery of lead from lead acid batteries |
| US10316420B2 (en) | 2015-12-02 | 2019-06-11 | Aqua Metals Inc. | Systems and methods for continuous alkaline lead acid battery recycling |
| CN109763148B (en) * | 2019-01-14 | 2020-11-03 | 浙江海虹控股集团有限公司 | Device and method for preparing high-purity metal titanium powder through continuous electrolysis |
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|---|---|---|---|---|
| US533596A (en) * | 1895-02-05 | Half to robert rintoul symon | ||
| US1959376A (en) * | 1930-09-26 | 1934-05-22 | Nichols Copper Co | Process for producing metal powders |
| US3002898A (en) * | 1957-12-24 | 1961-10-03 | Jarvis Ralph Herbert | Process of and apparatus for producing finely-divided metals |
| NL266994A (en) * | 1960-07-13 | |||
| US3419901A (en) * | 1966-02-18 | 1968-12-31 | Esb Inc | Method for producing flakes of nickel |
| US3616277A (en) * | 1968-07-26 | 1971-10-26 | Kennecott Copper Corp | Method for the electrodeposition of copper powder |
| US3825484A (en) * | 1971-04-29 | 1974-07-23 | N Fronsman | Electrolytic regenerator for chemical etchants including scraper means and rotating cathodes |
| US3860509A (en) * | 1973-02-20 | 1975-01-14 | Envirotech Corp | Continuous electrowinning cell |
| JPS5329126B2 (en) * | 1974-01-24 | 1978-08-18 | ||
| JPS552032Y2 (en) * | 1974-10-15 | 1980-01-19 | ||
| GB1573449A (en) * | 1976-04-01 | 1980-08-20 | Falconbridge Nickel Mines Ltd | Reusable electrolysis cathode |
| JPS57152482A (en) * | 1981-02-13 | 1982-09-20 | Nat Res Dev | Electrodeposition cell |
| DE3303594A1 (en) * | 1983-02-03 | 1984-08-09 | Robert Bosch Gmbh, 7000 Stuttgart | METHOD AND DEVICE FOR REGENERATING A copper-containing etching solution |
-
1986
- 1986-01-20 EP EP86900862A patent/EP0227689A1/en not_active Withdrawn
- 1986-01-20 US US07/016,386 patent/US4773978A/en not_active Expired - Fee Related
- 1986-01-20 WO PCT/NO1986/000005 patent/WO1987000210A1/en active IP Right Grant
- 1986-01-20 AU AU53570/86A patent/AU581964B2/en not_active Ceased
- 1986-03-10 CA CA000503672A patent/CA1306440C/en not_active Expired - Fee Related
- 1986-04-15 MX MX002176A patent/MX170335B/en unknown
- 1986-04-18 ZM ZM40/86A patent/ZM4086A1/en unknown
- 1986-05-02 ZA ZA863327A patent/ZA863327B/en unknown
- 1986-05-06 CN CN198686103146A patent/CN86103146A/en active Pending
- 1986-05-21 JP JP61117123A patent/JPS624892A/en active Granted
-
1987
- 1987-01-28 FI FI870362A patent/FI83338C/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102007230A (en) * | 2008-04-14 | 2011-04-06 | 三菱电机株式会社 | Active oxygen generating device, humidifier, and air purification system with humidifier |
| US8491709B2 (en) | 2008-04-14 | 2013-07-23 | Mitsubishi Electric Corporation | Active oxygen generating device, humidifier, and air purification system with humidifier |
| CN110306209A (en) * | 2019-08-09 | 2019-10-08 | 郑州金泉矿冶设备有限公司 | The equipment of electrolysis method production super fine silver powder |
Also Published As
| Publication number | Publication date |
|---|---|
| FI83338C (en) | 1991-06-25 |
| FI870362A (en) | 1987-01-28 |
| FI870362A0 (en) | 1987-01-28 |
| JPH034628B2 (en) | 1991-01-23 |
| EP0227689A1 (en) | 1987-07-08 |
| US4773978A (en) | 1988-09-27 |
| JPS624892A (en) | 1987-01-10 |
| WO1987000210A1 (en) | 1987-01-15 |
| FI83338B (en) | 1991-03-15 |
| AU581964B2 (en) | 1989-03-09 |
| AU5357086A (en) | 1987-01-30 |
| ZA863327B (en) | 1986-12-30 |
| ZM4086A1 (en) | 1986-11-28 |
| CA1306440C (en) | 1992-08-18 |
| MX170335B (en) | 1993-08-17 |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |